From 6bcb7c171a0ce0b0114aa088404e552b49d85576 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Fri, 3 Jul 2020 15:20:02 +0200 Subject: [PATCH] scsi: zfcp: Replace open-coded list move Instead of manually moving each element of the unit and port lists into our temporary on-stack lists, splice them over in one go. Link: https://lore.kernel.org/r/cacb179f49ece50fd4dce119c61252d632cdc1d4.1593780621.git.bblock@linux.ibm.com Reviewed-by: Steffen Maier Signed-off-by: Julian Wiedmann Signed-off-by: Benjamin Block Signed-off-by: Martin K. Petersen --- drivers/s390/scsi/zfcp_ccw.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c index 49eda141ea431..d9fd0a41da64a 100644 --- a/drivers/s390/scsi/zfcp_ccw.c +++ b/drivers/s390/scsi/zfcp_ccw.c @@ -124,13 +124,12 @@ static void zfcp_ccw_remove(struct ccw_device *cdev) return; write_lock_irq(&adapter->port_list_lock); - list_for_each_entry_safe(port, p, &adapter->port_list, list) { + list_for_each_entry(port, &adapter->port_list, list) { write_lock(&port->unit_list_lock); - list_for_each_entry_safe(unit, u, &port->unit_list, list) - list_move(&unit->list, &unit_remove_lh); + list_splice_init(&port->unit_list, &unit_remove_lh); write_unlock(&port->unit_list_lock); - list_move(&port->list, &port_remove_lh); } + list_splice_init(&adapter->port_list, &port_remove_lh); write_unlock_irq(&adapter->port_list_lock); zfcp_ccw_adapter_put(adapter); /* put from zfcp_ccw_adapter_by_cdev */ -- 2.39.5